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Best Management Practices for Corn Rootworm

 

Corn Rootworm - Best Management Practices

Consult with your Pioneer Sales Professional to build a corn rootworm (CRW) management plan for your fields.

Break the Cycle

Removing the CRW Bt trait from the field for a season can help break the cycle of resistance development.

  • Rotate to soybeans or another non-host crop
  • Avoid three or more years of continuous CRW Bt trait use
  • If low CRW populations are anticipated, consider planting a non-CRW Bt product along with a soil-applied insecticide or Poncho® 1250/VOTiVO® insecticide seed treatment for additional protection
Removing the corn rootworm Bt trait from the field for a season can help break the cycle of resistance development.
 

Manage Populations

Know your CRW populations so you can reduce the risk of significant root injury the following season.

  • Utilize sticky traps to scout your fields for weekly presence of adult CRW beetles from silking through grain fill
  • Use action thresholds to determine whether to apply a foliar insecticide to reduce CRW populations
  • Check for root injury to determine the effectiveness of your current management plan
Utilize sticky traps to scout your fields for weekly presence of adult CRW beetles from silking through grain fill.
 

Protect Yield Potential

If high CRW populations are anticipated for the upcoming season, utilize multiple modes of action for control.

  • Plant a product with multiple modes of action of control against CRW, such as Optimum® AcreMax® XTreme
  • Consider using a CRW Bt-traited product with Poncho® 1250/ VOTiVO® insecticide seed treatment for additional protection
  • Application of a soil-applied insecticide in addition to using a CRW Bt-traited product is not recommended for control of CRW except in limited circumstances. Consult with your Pioneer sales professional, university extension, or other local experts for further guidance.
If high CRW populations are anticipated for the upcoming season, utilize multiple modes of action for control.
 

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Poncho® and VOTiVO® are registered trademarks of Bayer.                                                
AcreMax® Xtra     AMX - Optimum® AcreMax® Xtra Insect Protection system with YGCB, HXX, LL, RR2. Contains a single-bag integrated refuge solution for above- and below-ground insects. In EPA-designated cotton growing counties, a 20% separate corn borer refuge must be planted with Optimum AcreMax Xtra products.

 

AcreMax® XTreme   Herculex® XTRA   Agrisure® RW   Yieldgard® Corn Borer   Roundup Ready® Corn 2   LibertyLink®

AMXT (Optimum® AcreMax® XTreme) - Contains a single-bag integrated refuge solution for above- and below-ground insects. The major component contains the Agrisure® RW trait, the YieldGard® Corn Borer gene, and the Herculex® XTRA genes. In EPA-designated cotton growing counties, a 20% separate corn borer refuge must be planted with Optimum AcreMax XTreme products. HXX - Herculex® XTRA contains the Herculex I and Herculex RW genes. YGCB - The YieldGard® Corn Borer gene offers a high level of resistance to European corn borer, southwestern corn borer and southern cornstalk borer; moderate resistance to corn earworm and common stalk borer; and above average resistance to fall armyworm. LL - Contains the LibertyLink® gene for resistance to Liberty® herbicide. RR2 - Contains the Roundup Ready® Corn 2 trait that provides crop safety for over-the-top applications of labeled glyphosate herbicides when applied according to label directions. 
Liberty®, LibertyLink® and the Water Droplet Design are registered trademarks of Bayer. YieldGard®, the YieldGard Corn Borer design and Roundup Ready® are registered trademarks used under license from Monsanto Company. Herculex® Insect Protection technology by Dow AgroSciences and Pioneer Hi-Bred. Herculex® and the HX logo are registered trademarks of Dow AgroSciences LLC. Agrisure® is a registered trademark of, and used under license from, a Syngenta Group Company. Agrisure® technology incorporated into these seeds is commercialized under a license from Syngenta Crop Protection AG.

 

Optimum® AcreMax® TRIsect®    

AMT - Optimum® AcreMax® TRIsect® Insect Protection System with RW,YGCB,HX1,LL,RR2. Contains a single-bag refuge solution for above and below ground insects. The major component contains the Agrisure® RW trait, the YieldGard® Corn Borer gene, and the Herculex® I genes. In EPA-designated cotton growing counties, a 20% separate corn borer refuge must be planted with Optimum AcreMax TRIsect products.

Herculex® I    

HX1 – Contains the Herculex® I Insect Protection gene which provides protection against European corn borer, southwestern corn borer, black cutworm, fall armyworm, lesser corn stalk borer, southern corn stalk borer, and sugarcane borer; and suppresses corn earworm.
Herculex® I Insect Protection technology by Dow AgroSciences and Pioneer Hi-Bred. Herculex® and the HX logo are registered trademarks of Dow AgroSciences LLC.

 

 
Respect the Refuge    

Consult with your Pioneer sales professional, university extension, crop consultants or other local experts for recommendations when considering a combination of CRW traits and soil applied insecticides. Soil-applied insecticides should not be necessary for CRW control with pyramided CRW-traited products.

 

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